diff options
Diffstat (limited to 'libpod')
-rw-r--r-- | libpod/image/image.go | 72 |
1 files changed, 58 insertions, 14 deletions
diff --git a/libpod/image/image.go b/libpod/image/image.go index 5dfb33afb..f5bf47694 100644 --- a/libpod/image/image.go +++ b/libpod/image/image.go @@ -410,48 +410,92 @@ func (ir *Runtime) getLocalImage(inputName string) (string, *storage.Image, erro if inputName == "" { return "", nil, errors.Errorf("input name is blank") } + // Check if the input name has a transport and if so strip it dest, err := alltransports.ParseImageName(inputName) if err == nil && dest.DockerReference() != nil { inputName = dest.DockerReference().String() } - img, err := ir.getImage(stripSha256(inputName)) + // Early check for fully-qualified images and (short) IDs. + img, err := ir.store.Image(stripSha256(inputName)) if err == nil { - return inputName, img, err + return inputName, img, nil } - // container-storage wasn't able to find it in its current form - // check if the input name has a tag, and if not, run it through - // again + // Note that it's crucial to first decompose the image and check if + // it's a fully-qualified one or a "short name". The latter requires + // some normalization with search registries and the + // "localhost/prefix". decomposedImage, err := decompose(inputName) if err != nil { + // We may have a storage reference. We can't parse it to a + // reference before. Otherwise, we'd normalize "alpine" to + // "docker.io/library/alpine:latest" which would break the + // order in which we should query local images below. + if ref, err := is.Transport.ParseStoreReference(ir.store, inputName); err == nil { + img, err = is.Transport.GetStoreImage(ir.store, ref) + if err == nil { + return inputName, img, nil + } + } return "", nil, err } - // The image has a registry name in it and we made sure we looked for it locally - // with a tag. It cannot be local. + // The specified image is fully qualified, so it doesn't exist in the + // storage. if decomposedImage.hasRegistry { + // However ... we may still need to normalize to docker.io: + // `docker.io/foo` -> `docker.io/library/foo` + if ref, err := is.Transport.ParseStoreReference(ir.store, inputName); err == nil { + img, err = is.Transport.GetStoreImage(ir.store, ref) + if err == nil { + return inputName, img, nil + } + } return "", nil, errors.Wrapf(ErrNoSuchImage, imageError) } - // if the image is saved with the repository localhost, searching with localhost prepended is necessary - // We don't need to strip the sha because we have already determined it is not an ID - ref, err := decomposedImage.referenceWithRegistry(DefaultLocalRegistry) + + // "Short-name image", so let's try out certain prefixes: + // 1) DefaultLocalRegistry (i.e., "localhost/) + // 2) Unqualified-search registries from registries.conf + unqualifiedSearchRegistries, err := registries.GetRegistries() if err != nil { return "", nil, err } - img, err = ir.getImage(ref.String()) + + for _, candidate := range append([]string{DefaultLocalRegistry}, unqualifiedSearchRegistries...) { + ref, err := decomposedImage.referenceWithRegistry(candidate) + if err != nil { + return "", nil, err + } + img, err := ir.store.Image(ref.String()) + if err == nil { + return ref.String(), img, nil + } + } + + // Backwards compat: normalize to docker.io as some users may very well + // rely on that. + ref, err := is.Transport.ParseStoreReference(ir.store, inputName) if err == nil { - return inputName, img, err + img, err = is.Transport.GetStoreImage(ir.store, ref) + if err == nil { + return inputName, img, nil + } } - // grab all the local images + // Last resort: look at the repotags of all images and try to find a + // match. images, err := ir.GetImages() if err != nil { return "", nil, err } - // check the repotags of all images for a match + decomposedImage, err = decompose(inputName) + if err != nil { + return "", nil, err + } repoImage, err := findImageInRepotags(decomposedImage, images) if err == nil { return inputName, repoImage, nil |